COMPONENTS TESTING (Continued)

RESISTOR: Heat Anticipator (See Figure 20)

Failure of the resistor will cause prolonged “off” and “on” cycles of the unit. When replacing a resistor, be sure and use the exact replacement. Resistor ratings are as follows:

115 Volt - 5,000 ohms 3 watt

230 Volt - 20,000 ohms 3 watt

Figure 20

Resistor

DEFROST THERMOSTAT (Heat Pump Models Only)

(See Figure 21)

WARNING

ELECTRIC SHOCK HAZARD

Disconnect power to the unit before servicing. Failure to follow this warning could result in serious injury or death.

This thermostat is single pole - double throw with contacts between terminals “2” and “3” closing on temperature rise and contacts between terminals “2” and “1” closing on temperature fall. When the contacts between terminals “2” and “1” make, power is supplied to the heater element.

This control is dual purpose control that acts as an outdoor thermostat and defrost control.

When the sensing bulb, attached to the outdoor coil, senses enough icing on the outdoor coil, it will interrupt power to the compressor and supply power to the heating element until the coil temperature reaches above 43°, then the heater will shut off and the unit will resume operating in the reverse cycle mode.

When the outdoor coil temperature drops below 20°, the unit will operate in electric heat mode continuously until the outdoor coil temperature rises above 43°.

The fan motor will not turn off when defrost occurs, and the 4-way valve will not reverse.

Figure 21

Defrost Thermostat

(Heat Pump Models)

DEFROST BULB LOCATION (Heat Pump Models

Only) (See Figure 22)

The defrost control bulb must be mounted securely and in the correct location to operate properly.

Figure 22

Defrost Thermostat Bulb

Location (All Heat Pump Models)

Retainer

Slide the bulb end of the thermostat defrost under the retainer as shown

22

Page 23 Page 25
Page 24
Image 24
Friedrich 2008, 2009 service manual Resistor Heat Anticipator See Figure, Defrost Thermostat Heat Pump Models Only
Page 23 Page 25

2009, 2008 specifications

Friedrich 2008 and 2009 represent significant advancements in heating and cooling technology, particularly in the realm of air conditioning systems. Friedrich is known for producing robust and efficient HVAC solutions tailored for both residential and commercial applications. These models are particularly noteworthy for their innovative features and energy-efficient technologies that enhance user comfort and lower operational costs.

One of the main characteristics of the Friedrich 2008 and 2009 models is their emphasis on energy efficiency. Both units are designed to meet or exceed Energy Star standards, which indicates that they use less energy compared to standard models, contributing to greener living solutions. The incorporation of efficient compressors and high SEER (Seasonal Energy Efficiency Ratio) ratings ensures that users save money on their electricity bills while enjoying optimal cooling performance.

The units also feature advanced inverter technology, which allows for variable speed operation. This means that the system can adjust its cooling capacity based on the current temperature needs, resulting in more consistent comfort while reducing wear and tear on the equipment. Additionally, the inverter technology operates more quietly compared to traditional systems, making these models suitable for both home environments and commercial settings.

Friedrich 2008 and 2009 also provide users with enhanced control options. The inclusion of smart technology and Wi-Fi connectivity allows for remote monitoring and temperature adjustments via smartphones or tablets. Users can create schedules, set temperature preferences, and receive maintenance alerts, contributing to a more user-friendly experience.

Moreover, these models are designed with robust construction, featuring durable materials that withstand various weather conditions. Their compact footprint and sleek design make them suitable for window installation, while an array of sizes accommodates spaces of different dimensions.

Additionally, the air filtration systems in Friedrich 2008 and 2009 units improve indoor air quality. They effectively capture dust, allergens, and other particulates, ensuring a healthier environment for occupants.

In summary, Friedrich 2008 and 2009 models stand out for their energy efficiency, innovative inverter technology, smart controls, and robust construction. With a focus on user comfort and environmental responsibility, these models provide reliable solutions for effective heating and cooling in diverse applications.
Top Page Image Contents